Supported Attributes:
| Attribute | Description | 
|---|---|
| Id | Unique identifier for the construction. Normally prefixed with lightsys-. | 
Supported Children:
| Element | Description | 
|---|---|
| Manufacturer | If a photometric web file is specified for the fixture, this value is set from the [MANUFAC] tag. | 
| NumberOfLamps | Set from photometric web file. | 
| LumensPerLamp | Set from photometric web file. | 
| Dimensions | Set from photometric web file. | 
| InputWatts | Set from photometric web file. | 
| Lamp | Set from photometric web file. | 
| Luminaire | Set from photometric web file. | 
| Photometry | Photometric data is required for various forms of lighting analysis. This tag provides a way for the photometric data to be passed. Since this can be done in a variety of ways (iesna LM-63, cibse TM14, ELUMDAT, etc.) a specific format is not being specified similar to the <GeneralGeometry> tag. | 
Sample:
<LightingSystem id="lightsys-15">
<Manufacturer>LITHONIA LIGHTING</Manufacturer>
<NumberOfLamps>1</NumberOfLamps>
<LumensPerLamp>1200</LumensPerLamp>
<Dimensions>
<Height>1</Height>
<Width>0.33</Width>
<Length>1</Length>
</Dimensions>
<InputWatts unit="Watt">100.000000</InputWatts>
<Lamp>ONE 100-WATT R-30 FLOOD INCANDESCENT, VERTICAL BASE-UP POSITION.</Lamp>
<Luminaire>5" OPEN DOWNLIGHT WITH SPECULAR CONE.</Luminaire>
<Photometry>IESNA91 [TEST] 2189030903 [MANUFAC] LITHONIA LIGHTING [LUMCAT] JC1A (100R30FL) [LUMINAIRE] 5" OPEN DOWNLIGHT WITH SPECULAR CONE. [LAMPCAT] 100R30FL [LAMP] ONE 100-WATT R-30 FLOOD INCANDESCENT, VERTICAL BASE-UP POSITION. [_PRODUCTGROUP] LITHONIA DOWNLIGHTING [_INFOLINK] www.lithonia.com/visual/ies/ies.asp?vfile= TILT=NONE 1 1200 1 21 1 1 1 -0.33 0 0 1 1 100 0 5 15 25 35 45 55 65 75 85 90 95 105 115 125 135 145 155 165 175 180 0 566 576 573 445 503 270 77 27 0 0 0 0 0 0 0 0 0 0 0 0 0</Photometry>
</LightingSystem>